Lol, I've found on My PC a Folder called North America Navigator 2012.40, in it there is a gmapsupp img file. I used this two years ago to put on a mates Garmin who was going to the USA and it worked.

Now if I put this on an SD I'll use it with my Garmin. I've sorted out how to unlock using Jetmouse but cannot find the FID/MapID which I need, anywhere on my PC

I'm only one part Scottish, the other three are Manx hence the inability to understand technology , If I can get this map on an SD working I promise to send you some breeding Haggis, they may well help to keep the Roo's down.